Pressure-reducer for gas or other pipes.



Nq. 707,3!8. Patented Aug. I9, |902.

,.I. L. GEYER R. A. PRIME. PRESSURE REDUCER FOB GAS 0R OTHER PIPES.

(Application :Bled Apr. 14, 1902.) (Il o M o d el.)

1.9 Z1 20754 J J0 mmm NiTED STATES,

PATENT OFFICE.

JOHN L. GEYER AND ROBERT A. PRIME, OF CINCINNATI, OHIO.

PRESSURE-REDUCER FOR GAS OR OTHER PIPES.

SPECIFICATION forming part of Letters Patent No. I"7073318, dated August 19, 1902.

Application met April 14, 1902.

To a/ZZ whom t mapeo-acorn:

Beit known that we, JOHN LGEYER and ROBERT A. PRIME, citizens of the AUnited States of America, and residents'ot Cincin-4 nati, in the county of Hamilton and'State of Ohio, have invented certain new and useful Improvements in PressurelReducers for Gas or other Pipes, of which the following is a specification.

This invention relates to certain improvements in that class of devices which are de? signed for use in reducing or cutting down the pressure in gas-pipes, so that an economy in the use of the gas may be effected by the prevention of an excessive supply of gasto the burner; and the object of the invention is to provide a device of this character of a simple and inexpensive nature which shall be capable of ready application to the gaspipe for use and which shall be capable otl adjustment before being placed in position for use in order to adapt the device for less or greater reduction of the gas-pressure.

The invention consists in certain novel features of the construction, combination, and arrangement of the several parts of the improved pressure-reducing device, whereby certain important advantages are attained and the device is made simpler and cheaper and is otherwise better adapted and made more convenient for use than other similar devices heretofore employed, all as will be hereinafter fully set forth.

A axis of the improved pressure-reducing device detached from the gas-pipe. Fig. 3 is an end view of the improved device as shown in Fig. 2; and Fig. 4 is an end view similar to Fig; 3, but showing the device with its end cap or valve removed.

As shown in the views, l indicates the body portion of a casing or shell for the improved pressure-reducing device, this shell or casing ythreaded end of a pipe-section 6.

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`being constructed, as herein shown, in the form of a reducing-nipple and having its main'or body portion 1 provided with inte- Vrior screw-threads 2 and adapted to receive `the threaded end of a section 3 of the gaspipe. The shell or casing is also provided with va portion 4 of reduced cross-section and integral with the main or body portion 1 and provided with exterior screw-threads, as shown at 5, to receive the interiorly-screw- At the junction between the portions l and 4 of the shell or casing an annular shoulder 7 is produced, which is extended around the bore or passage 8 of the reduced portion 4 of the shell or casing. The said bore or passage 8 of the reduced portion of the shell or casing is made for a portion of its length adjacent to the shoulder 7 tapered or conical and isy adapted to ft'the conical walls of the presportion S the said bore or passage of the reduced portion 4 of the shell-or casing is made of a diameter greater than the portion of the device 9 which passes through such portion, as shown at 10 on Fig. 1, and in this way looseness is provided at the smaller end of the conical pressure-reducing device, so that the cap or valve thereof may be more conveniently turned or adjusted, as will be hereinafter explained, and danger of sticking of said cap or valve is avoided.

The pressure-reducing device 9 is constructed from metal and is formed with an interior hollowr or chamber 2l, adapted to be loosely packed with'cotton-wool or other suitable material forbreaking and lessening the pressure of gas passed through said hollow or chamber, and the larger endy 1ll of said chamber or hollow is left open to permit of ready application or removal of the packing therein. The opposite smaller end of the conical pressure-reducing device is made with a reduced diameter, as shown at 12, and is adapted to receive a metallic cap or valve 13, arranged to fit said reduced end portion of the device. At the reduced end of the device the chamber or hollow 2l thereof is partly closed by an end wall 14, said Wall be- IOO of said end is left open, as shown at l5 in the drawings. The cap or valve 13 has its end also partially closed by an end wall 16, which is extended over more than half of the end of said cap or valve, the remaining portion of the end thereof being left open, as shown at 17. The closed portion 16 of the end of the cap or valve is also formed with openings 1S 18, adapted to receive the points of a tool, by means of which said cap or valve may be turned upon the body of the device 9 in such a way as to move the closed portion 16 of the end of the cap or valve into position to cut o or close more or less of the opening 15 in the end wall of the device 9.

The conical body of the pressure-reducing device 9 is of a length such that when said device is inserted in the bore of the shell or casing the smaller end portion thereof will protrude beyond the extremity of the reduced portion 4L of said shellor casing, as shown in Fig. 1, so that when the pipe-section 6 is unscrewed from the shell or casing the valve or cap 13, carried upon said smaller end of the device, will be in position to be conveniently turned either by the fingers or, if too tight for such operation, by means of a tool engaged with the openings 18 18 in the end of the cap or valve. The protruding end of the pressure-reducing device also permits of being pressed by the fingers to push said device endwise out of the bore of the shell or casing when it is desired to remove the device therefrom.

In order to hold the pressure-reducing device within the bore of the shell or casing and also to hold the packing of cotton-wool or other material in the chamber or hollow 21 of said device, we employ a sheet or disk of foraminous material, such as wire-gauze, as indicated at 19 on the drawings, which sheet or disk is of a diameter to be fitted in the larger end of the bore of the shell or casing, as shown in Fig. 1, in position to extend across the open larger end 11 of the device 9, with its edge or marginal portions 2O extended upon the shoulder 7 around the end of the bore 3 of the shell or casing and in position to be clamped between said shoulder and the extremity of the pipe-section 3 engaged with the shell or casing. By this arrangement the device 9 is held securely against endwise movement in the shell or casing and the packing is also held securely within the cavity of the device, While when it is desired to remove the device either for changing the packing or for any other purpose this may be readily effected by removal of the pipe-section 3 and of the sheet or disk 19.

The cap or valve 13 may be turned to cut off more or less of the opening in the end of the conical body of the device 9, so as to impede the iiow of gas through thedevice, and thereby to reduce the pressure at which the gas :is supplied to the burner, and the adjustment of the valve or cap may be varied to suit the requirements of each particular case. The packing of cotton-wool in the hollow or chamber 21 of the device also materially reduces the pressure of the gas iiowing to the burner, and when such packing is omitted the sheet or disk 19, of foraminous material, also serves to an extent to reduce the pressure of the gas.

The device constructed according to our invention is of an extremel \7 simple and inexpensive nature and is especially well adapted for use, owing to the ease with which it may be adjusted to suit each particular case and with which it may be placed in position in the pipe. When in the pipe, also, it is compleiely hidden and is not accessible except upon disconnecting the pipe-sections, so that tampering with the device is prevented. Since the pressure in gas-mains must always or almost always be maintained considerably above the pressure best suited for use at the burners, it will be evident that a very considerable waste of gas is avoided by the use of the improved pressure-:reducing device and a material economy is effected in the consumption of gas. It will also be obvious from the above description of our improvements that the improved pressure-reducing device is capable of some modification without material departure from the principles and spirit of the invention, and for this reason we do not wish to be understood as limiting ourselves to the precise form and arrangement of the several parts of the device as herein set forth.

Having thus described our invention, what we claim, and desire to secure by Letters Patent, is-

1. A pressure-reducing device forgas-pipes and the like comprising ashell or casing having end portions adapted for connection with gas-pipe sections and havinga tapered bore, a hollow body portion exteriorly tapered to fit the bore of the shell or casing and having an end portion extended beyond one.end of the shell or casing, said body portion having a hollow adapted to receive a packing of fibrous material and having openings at its ends for the passage of gas through said hollow, a sheet of foraminous material extended across one end of said body portion to hold the packing in the hollow thereof and a cupshaped valve movably held on the extended end of the body portion and arranged to control the opening at the other end of said body portion, substantially as set forth.

2. A pressure-reducing device for gas-pipes and the like comprising a shell or casing having end portions adapted for connection with gas-pipe sections and having a tapered bore, a hollow body portion exteriorly tapered to fit in the bore of the shell or casing and having one end open and having at its other end an end wall formed with a cut-out portion for the passage of gas and a valve held to turn on said last-named end of the body portion and having a wall formed with a cut-out por- IOO IIO

tion adapted for registry with the eut-out portion of the end Wall of said body portion, substantially as set forth.

3. In a pressure-reducing device for gaspipes and the like, the combination of a shell or casing having ends adapted for connection with pipe-sections and having a tapered bore, a body portion tapered tot the bore in said shell or casing and having a gas passage formed in it and provided with pressure-re'- ducing means, and means for holding said body portion in position in said bore, substantially as set forth.

4:. In a pressure-reducing device `for gaspipes and the like, the combination of a shell or casing having ends adapted for connection with pipe sections and having a passage formed through it, one portion of said passage being reduced and made tapered and having a shoulder extended around its larger end, a body portion having a gas-passage formed in it and provided'with pressure-reducing means, said body portion being eX- teriorly tapered to t inthe conical bore-of the shell or casing and a sheet of foralninous material extended across the larger portion of the passage of the shell or casing at the end of said body portion with edge portions rested on the shoulderrof said passage, said sheet being arranged to hold the body portion in place in the shell or casing, substantially as set forth.

Signed at Cincinnati, Ohio, this 11th dayy of April, 1902.

v -JOHN L. GEYER.

ROBERT A. PRIME.

Witnesses:

JOHN ELIAS J ONES, J. D. THORNE. 

